Sybase InfoMaker 11.5, CD, Win, ENG Especificaciones descargar pdf (Pagina 311)

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CHAPTER 8 Displaying and Validating Data

Users Guide 289

Defining validation rules

Typically, you define validation rules in the Database painter, because

validation rules are properties of the data itself. Once defined in the Database

painter, the rules are used by default each time the column is placed in a form.

You can also define a validation rule in the Report painter that overrides the

rule defined in the Database painter.

Defining a validation rule in the Database painter

This section describes the ways you can manipulate validation rules in the

Database painter.

❖ To create a new validation rule

1 In the Extended Attributes view in the Database painter, right-click

Validation Rules and select New from the pop-up menu.

The Validation Rule view displays in the Properties view.

2 Assign a name to the rule, select the datatype of the columns to which it

applies, and customize the error message (if desired).

For information, see “Customizing the error message” on page 291.

3 Click the Definition tab and define the expression for the rule.

For information, see “Defining the expression” on page 290.

You can use this rule with any column of the appropriate datatype in the

database.

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Sybase InfoMaker 11.5, CD, Win, ENG Especificaciones Pagina 311

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